Solve the problem.Cindy has scores of 74, 81, 84, and 89 on her biology tests. Use a compound inequality to find the range of scores she can make on her final exam to receive a C in the course. The final exam counts as two tests, and a C is received if the course average is between 70 and 79.
A. 70 ? final score ? 79
B. 46 ? final score ? 73
C. 92 ? final score ? 146
D. 11 ? final score ? 33.5
Answer: B
Mathematics
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Solve the problem by estimating.Andy wants to buy a refrigerator for $699, a stove for $859, and a dishwasher for $249. Round each cost to the nearest hundred to estimate the total cost.
A. $1800 B. $1600 C. $1900 D. $1700
Mathematics
Find the inverse of the function.f(x) = 
A. f-1(x) = 
- 
B. f-1(x) = 
- 
C. f-1(x) = 
- 
D. f-1(x) = 
Mathematics
Write the expression in the standard form a + bi.If z = 2 - 7i, evaluate 5
.
A. 2 - 35i B. 10 + 35i C. 10 - 35i D. 10i - 7i
Mathematics
Solve the equation for ? if 
. Do not use a calculator.
?
What will be an ideal response?
Mathematics